Cheap Dedicated Server -Management,Application Monitoring

Application Monitoring

Monitoring applications to Dedicated Server and respond to problems - before an end user is even aware that a problem exists - is a common systems requirement, especially for revenue-generating production environments. Most administrators understand the need for application monitoring. Infrastructure teams, in fact, typically monitor the basic health of application servers by keeping an eye on CPU utilization, throughput, memory usage and the like. However, there are many parts to an application server environment, and understanding which metrics to monitor for each of these pieces differentiates those environments that can effectively anticipate production problems from those that might get overwhelmed by them.

When applied in an appropriate context, application monitoring is more than just the data that shows how an application is performing technically. Information such as page hits, frequency and related statistics contrasted against each other can also show which applications, or portions thereof, have consistently good (or bad) performance. Management reports generated from the collected raw data can provide insights on the volume of users that pass though the application. An online store, for example, could compare the dollar volume of a particular time segment against actual page hits to expose which pages are participating in higher or lower dollar volumes,Use to Dedicated Server.

Application Monitoring Tools:

    No code:

    This, by far, is the single most valuable benefit regarding a tools-based approach. Application monitoring tools, through the ability of classloader instrumentation and other Java techniques, allows for the seamless and invisible collection of data without writing a single line of code.

    Fewer developer distractions:

    With application monitoring no longer a focal point, developers can instead concentrate on the logic of the application.

    Non-application specific:

    Application monitoring tools are not developed for anything more specific than the Java language and WebSphere Application Server environment.

    Reusability:

    Application monitoring tools are written to generically capture data from any application, resulting in a tremendous amount of reuse built into the tooling itself. Without doing anything extraordinary, an application monitoring tool can capture data for a variety of applications as they come online.

    Reliability:

    While you should still perform due diligence to ensure that a tool is working properly in your environment, application monitoring tools from major vendors are generally subject to extensive testing and quality assurance for high volume environments.

    Understandable results:

    Consolidation of data occurs at some central console, and the results can be readily understood by a systems administrator. Only when the system administrator has exhausted all resources would developers need to assist in troubleshooting by examining data from a variety of subsystems.

    Cost:

    Yes, there is the initial expenditure of procuring such a tool, but there is also the very real possibility of eventual cost savings - particularly in terms of time.

Application Monitoring:

A WebSphere Application Server-based application has, at the very least, two or more of the components identified in Figure 1:

    servlet container

    EJB container

    HTTP Session objects

    connection pool to database(s)

    JVM memory. 

Each one of these components has a variety of metrics that can be collected and monitored. When monitoring an application, specific components are identified for monitoring, depending on what it is you want to watch for, then thresholds are set to provide alerts to the team of people that can work on the particular problem. For example, if the connection pool is experiencing slower SQL timings than normal, then the back end database and network administrators would be contacted so they could figure out why this is happening.


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